How to remove visually empty lines from a text file?

Method 1: Run the sed Command to Remove Empty Lines in Bash. In our first solution, we will use the sed command to remove the empty lines in Bash from the file.

2013年5月7日 — You may have spaces or tabs in your empty line. Use POSIX classes with sed to remove all lines containing only whitespace:

2024年3月18日 — Explore some common scenarios for removing blank lines from a file through practical examples.

2022年11月7日 — I want to remove all such empty lines. I tried it with the following command on Debian Linux Stretch: cat /path/to/file | sed '/^-s*$/d ...

2023年3月24日 — Method 1: Using sed Command ... In above command, sed command is used to search for lines that start and end with nothing, which means they are ...

2024年3月17日 — You can use the syntax sed '/^[[:space:]]*$/d' filename” to remove the empty lines from a text file or multiline string using the sed command.

2023年7月3日 — Removing empty lines from files is a common task in Linux Bash scripting. Empty lines can clutter up files and make them harder to read or ...

2022年12月19日 — Explains how to delete (remove) all empty and blank lines with sed command under Linux, macOS, *BSD and Unix-like systems using shell.

2020年11月27日 — You seem to be removing all blank lines given your sample input/output. If so that's just grep '.' or sed -n '/./p' or awk 'NF' . If that's not ...

2011年3月28日 — Simple solution is by using grep (GNU or BSD) command as below. Remove blank lines (not including lines with spaces). ... Remove completely blank ...